# Edit YARN site XML file

If you are using YARN, you must verify that the following parameters are set in the `yarn-site.xml` file.

Perform the following steps to edit the `yarn-site.xml` file:

1. Navigate to the `*<username>*/.pentaho/metastore/pentaho/NamedCluster/Configs/*<user-defined connection name>*` directory and open the `yarn-site.xml` file.
2. Add the following values:

   | Parameter                              | Value                                                                                        |
   | -------------------------------------- | -------------------------------------------------------------------------------------------- |
   | **yarn.application.classpath**         | Add the classpaths you need to run YARN applications. Use commas to separate multiple paths. |
   | **yarn.resourcemanager.hostname**      | Change to the hostname of the resource manager in your environment.                          |
   | **yarn.resourcemanager.address**       | Change to the hostname and port for your environment.                                        |
   | **yarn.resourcemanager.admin.address** | Change to the hostname and port for your environment.                                        |
3. Save and close the file.